Question about 2001 Chrysler Voyager
Over heating when on
In general, assuming you have the proper levels of coolant in the system, the next item to check is the thermostat. It is held in a metal housing bolted to the top of the engine block at the end of the upper radiator hose. This controls the temperature of the coolant in your cooling system. Not operating correctly, it would not allow the hot water in your engine to properly flow to the radiator to be cooled and cause overheating.
If your fan is not coming on at all, it may be that the temperature sensor they are connected to is faulty. The sensor turns on the fans once the coolant reaches a certain temperature. If the sensor is bad, the fans will not turn on regardless of the coolant temperature.
Lastly, if the water pump itself is bad (not circulating the coolant), this will cause overheating. Usually, a bad water pump will begin to show itself as a puddle underneath your car-since bad seals or bearing will cause it to fail this way-but I have also seen where poor maintenance of the coolant itself (not being flushed and changed at required intervals) have allowed deposits in the system to wear the blades inside the pump and reduced its effectiveness.
Hope this helps!
Posted on Apr 01, 2014
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Posted on Jan 02, 2017
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